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Texas Instruments TLV6742IDDFR
- Part No.:
- TLV6742IDDFR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
TLV6742IDDFR.pdf
- Description:
- IC CMOS 2 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:211
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Product details
Overview
TLV6742IDDFR from Texas Instruments is a dual-channel, rail-to-rail output CMOS operational amplifier optimized for low-noise precision applications. It delivers 10-MHz gain bandwidth, 3.5 nV/√Hz input voltage noise at 10 kHz, ±3 pA input bias current, and operates from 1.7 V to 5.5 V supply. It is used in transimpedance amplifier circuits and professional audio amplifiers where low distortion and wide dynamic range are critical.
For engineers reviewing the TLV6742IDDFR datasheet, TLV6742IDDFR pinout, TLV6742IDDFR application, or TLV6742IDDFR equivalent, this page provides verified specifications, package-validated pin functions, real-world use cases in instrumentation and audio, and two confirmed alternative op-amps with documented functional and application-level differences.
Technical Context
The TLV6742IDDFR implements a unity-gain-stable CMOS input stage with integrated RFI/EMI rejection filtering and no phase reversal under overdrive. Its resistive open-loop output impedance enables stable operation with capacitive loads up to 100 pF without external compensation.
It supports single-supply operation down to 1.7 V (±0.85 V), features robust 71-dB EMIRR at 2.4 GHz, and maintains ±0.2 µV/°C offset drift across –40°C to +125°C - enabling high-accuracy signal conditioning in battery-powered wearables and industrial sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 10 MHz - supports stable closed-loop gain ≥10 at 1 MHz or ≥2 at 5 MHz. |
| Voltage Noise Density | 3.5 nV/√Hz at 10 kHz - enables sub-µV signal resolution in 100-kHz bandwidth systems. |
| Input Bias Current | ±3 pA - allows use with >100-MΩ source impedances without significant DC error. |
| Offset Voltage | ±0.15 mV (typ) - contributes ≤0.3% error in 50-mV full-scale sensor interfaces. |
| Supply Range | 1.7 V to 5.5 V - compatible with Li-ion, 3.3-V, and 5-V rails; supports ultra-low-power wake-up circuits. |
| Quiescent Current | 990 µA per channel - enables dual-op-amp functionality in <2-mA total system standby budgets. |
| EMI Rejection | 71 dB at 2.4 GHz - suppresses Bluetooth/WiFi interference in wireless-connected instrumentation. |
Pinout & Package
The TLV6742IDDFR is packaged in an 8-pin SOT-23 (DDF) with body size 1.60 mm × 2.90 mm, rated for operation from –40°C to +125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of channel 1; rail-to-rail swing within 5–14 mV of supply rails at 10-kΩ load. |
| 2 | IN1– | Inverting input of channel 1; matched to IN1+ for <1.2-mV max offset at temperature extremes. |
| 3 | IN1+ | Noninverting input of channel 1; high-impedance CMOS node supporting >1-GΩ feedback networks. |
| 4 | V– | Negative supply or ground reference; must be connected directly to PCB ground plane for EMI immunity. |
| 5 | IN2+ | Noninverting input of channel 2; electrically isolated from channel 1 inputs with >130-dB channel separation at 20 kHz. |
| 6 | IN2– | Inverting input of channel 2; shares same process-matched pair as IN1± for consistent AC performance. |
| 7 | OUT2 | Output of channel 2; independent drive capability up to ±68 mA short-circuit current. |
| 8 | V+ | Positive supply; accepts 1.7–5.5 V; internal UVLO ensures clean startup above 1.65 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 5 mV of V– and 7 mV of V+ at 10-kΩ load - preserves dynamic range in 1.8-V systems. |
| Unity-gain stability | Stable with gain = +1 and 20-pF capacitive load - eliminates need for external compensation in buffer designs. |
| Integrated EMI filter | 71-dB rejection at 2.4 GHz - prevents RF rectification artifacts in ADC front-ends without external LC filters. |
| No phase reversal | Maintains correct polarity during input overdrive - avoids latch-up or false triggering in comparator-like configurations. |
| 2-kV HBM ESD rating | Withstands handling and board assembly without special precautions - reduces manufacturing yield loss. |
Applications
| Transimpedance Amplifier Circuit | Professional Audio Amplifier |
|---|---|
Use Scenario: Converting photodiode or electrode current (pA–nA) into precise voltage for ADC digitization in lab instrumentation. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier with ultra-low input bias current and broadband noise floor. Use Value: ±3 pA input bias enables accurate measurement of <100-pA signals; 3.5 nV/√Hz noise supports >100-dB SNR in 100-kHz bandwidth. |
Use Scenario: Low-distortion preamplifier stage in rack-mount audio gear handling line-level analog inputs. IC Role / Device Role / Timing Role: Dual-channel gain block with THD+N = 0.00015% at 1 kHz, driving 10-kΩ loads. Use Value: Rail-to-rail output delivers full 3.3-Vpp swing from 5-V supply; 10-MHz GBW preserves transient fidelity up to 20 kHz. |
| Solid State Drive | Pressure Transmitter |
Use Scenario: Signal conditioning for NAND flash read/write voltage references and sense amplifiers in SSD controller boards. IC Role / Device Role / Timing Role: Precision reference buffer and current-sense amplifier with low drift over temperature. Use Value: ±0.2 µV/°C offset drift ensures <1-µV drift over 85°C operating range; 1.7-V min supply supports low-power idle states. |
Use Scenario: Amplifying millivolt-level bridge outputs from MEMS pressure sensors in industrial process control. IC Role / Device Role / Timing Role: Instrumentation-grade dual op-amp for differential bridge excitation and output scaling. Use Value: 130-dB channel separation prevents crosstalk between excitation and sensing paths; 125-dB open-loop gain enables <0.01% linearity error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-noise operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2376IDGKR | Lower noise (4.5 nV/√Hz), higher IQ (760 µA/ch), no shutdown, SOIC-8 only | Better for ultra-low-noise audio; lacks shutdown for power-gated sensor nodes | Choose when lowest possible noise dominates over power and feature set |
| LMV792MMX/NOPB | Higher noise (8.5 nV/√Hz), lower GBW (88 MHz), 1.8-V min supply, no EMI filter | Preferred for high-speed, low-voltage portable medical devices requiring fast settling | Choose when >10-MHz small-signal bandwidth is required over noise performance |
Compared with OPA2376IDGKR and LMV792MMX/NOPB, the TLV6742IDDFR uniquely balances 3.5-nV/√Hz noise, 10-MHz bandwidth, 1.7-V operation, and integrated EMI rejection - making it optimal for battery-powered test equipment and industrial sensors where noise, supply headroom, and RF immunity are co-constrained.
Availability
TLV6742IDDFR is available at Aetrix Electronics and suitable for transimpedance amplifier circuits, professional audio amplifiers, solid state drives, and pressure transmitters requiring stable component supply across automotive, industrial, and medical-adjacent design cycles.
Supply support for TLV6742IDDFR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of op-amp innovation and broad industrial qualification.
The TLV6742IDDFR belongs to TI's TLV674x low-noise, low-voltage op-amp family, designed specifically for precision signal chains in space-constrained, battery-operated, and EMI-sensitive applications such as portable instrumentation and industrial IoT endpoints.
FAQ
What is the minimum supply voltage for reliable operation of the TLV6742IDDFR?
The TLV6742IDDFR operates reliably from 1.7 V to 5.5 V. Operation between 1.7 V and 1.8 V is specified only for ambient temperatures from 0°C to 85°C. Below 1.7 V, the device may fail to meet datasheet parameters including gain bandwidth, output swing, and noise performance. Always verify startup behavior at 1.7 V using the recommended operating conditions table in the official TLV6742IDDFR datasheet.
Does the TLV6742IDDFR support rail-to-rail input common-mode range?
No, the TLV6742IDDFR does not support rail-to-rail input. Its common-mode input voltage range extends from V– to (V+) – 1.2 V. At 5.5-V supply, this yields a usable input range of 0 V to 4.3 V. This limitation is due to its CMOS input stage architecture and must be accounted for in single-supply designs - for example, by biasing sensor outputs near mid-supply using a Thevenin divider.
What is the typical output voltage swing of the TLV6742IDDFR at 5.5 V supply and 10-kΩ load?
At VS = 5.5 V and RL = 10 kΩ, the TLV6742IDDFR delivers a typical output swing of within 5 mV of V– and 7 mV of V+, resulting in >5.48 Vpp usable range. This rail-to-rail output performance is maintained across –40°C to +125°C and enables full utilization of 12-bit and 16-bit ADC input ranges without level-shifting circuitry.
How does the TLV6742IDDFR handle electromagnetic interference at 2.4 GHz?
The TLV6742IDDFR achieves 71 dB of electro-magnetic interference rejection ratio (EMIRR) at 2.4 GHz due to an integrated on-die RFI/EMI rejection filter. This suppresses rectified artifacts from nearby Bluetooth or WiFi transceivers that could otherwise appear as DC offset shifts or spurious tones in sensitive analog front-ends - eliminating the need for external ferrite beads or RC filters in compact layouts.
Is the TLV6742IDDFR pin-compatible with other packages in the TLV6742 family?
No, the TLV6742IDDFR (SOT-23-8) is not pin-compatible with TLV6742 variants in SOIC-8, VSSOP-8, TSSOP-8, WSON-8, or X2QFN-10 packages. While all share identical electrical functionality and channel mapping, pin numbering and physical layout differ - especially between DDF (SOT-23) and DSG (WSON) or RUG (X2QFN). PCB redesign is required when substituting packages.
TLV6742IDDFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 990µA
- Current - Output / Channel:
- 68 mA
- Voltage - Supply Span (Min):
- 1.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
TLV6742IDDFR FAQ
1.How can I place an order for TLV6742IDDFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV6742IDDFR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLV6742IDDFR reliable?
The price and inventory of TLV6742IDDFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV6742IDDFR is usually 5 days.
3.What payment methods are accepted for TLV6742IDDFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV6742IDDFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV6742IDDFR?
TLV6742IDDFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV6742IDDFR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLV6742IDDFR?
For technical support, including TLV6742IDDFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV6742IDDFR requirements.
6.How does Aetrix verify that TLV6742IDDFR is sourced from the original manufacturer or authorized distributors?
All TLV6742IDDFR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLV6742IDDFR meets industry standards.
7.What is the process for return or replacement of TLV6742IDDFR?
All TLV6742IDDFR units undergo pre-shipment inspection (PSI). If there is an issue with TLV6742IDDFR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLV6742IDDFR part is unused and in its original packaging.
Return procedure for TLV6742IDDFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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